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Discovery of MK-1462: GLP-1 and Glucagon Receptor Dual Agonist for the Treatment of Obesity and Diabetes.

ABSTRACT: Peptide-based analogues of the gut-derived incretin hormone, glucagon-like peptide 1 (GLP1), stimulate insulin secretion in a glucose-dependent manner. Currently marketed GLP1 receptor (GLP1R) agonists are safe and effective in the management of Type 2 diabetes but often offer only modest weight loss. This has prompted the search for safe and effective alternatives to enhance the weight loss component of these treatments. We have demonstrated that concomitant activation GLP1R and the glucagon receptor (GCGR) can improve glucose metabolism and provide superior weight loss when compared to selective GLP1R agonism in preclinical species. This paper will highlight chemistry structure-activity relationship optimization and summarize in vivo efficacy studies toward the discovery of a once daily balanced dual agonist 12 (MK-1462), which was advanced into clinical trials.

SUBMITTER: Palani A

PROVIDER: S-EPMC9377002 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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Discovery of MK-1462: GLP-1 and Glucagon Receptor Dual Agonist for the Treatment of Obesity and Diabetes.

Palani Anandan A Nawrocki Andrea R AR Orvieto Federica F Bianchi Elisabetta E Mandić Emanuela E Pessi Antonello A Huang Chunhui C Deng Qiaolin Q Toussaint Nathalie N Walsh Erika E Reddy Vijay V Ashley Eric E He Huaibing H Mumick Sheena S Hawes Brian B Marsh Donald D Erion Mark M Nargund Ravi R Carrington Paul E PE

ACS medicinal chemistry letters 20220721 8

Peptide-based analogues of the gut-derived incretin hormone, glucagon-like peptide 1 (GLP1), stimulate insulin secretion in a glucose-dependent manner. Currently marketed GLP1 receptor (GLP1R) agonists are safe and effective in the management of Type 2 diabetes but often offer only modest weight loss. This has prompted the search for safe and effective alternatives to enhance the weight loss component of these treatments. We have demonstrated that concomitant activation GLP1R and the glucagon re ...[more]

PMID: 35978682

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Project description:ObjectiveA novel dual GIP and GLP-1 receptor agonist, LY3298176, was developed to determine whether the metabolic action of GIP adds to the established clinical benefits of selective GLP-1 receptor agonists in type 2 diabetes mellitus (T2DM).MethodsLY3298176 is a fatty acid modified peptide with dual GIP and GLP-1 receptor agonist activity designed for once-weekly subcutaneous administration. LY3298176 was characterised in vitro, using signaling and functional assays in cell lines expressing recombinant or endogenous incretin receptors, and in vivo using body weight, food intake, insulin secretion and glycemic profiles in mice. A Phase 1, randomised, placebo-controlled, double-blind study was comprised of three parts: a single-ascending dose (SAD; doses 0.25-8 mg) and 4-week multiple-ascending dose (MAD; doses 0.5-10 mg) studies in healthy subjects (HS), followed by a 4-week multiple-dose Phase 1 b proof-of-concept (POC; doses 0.5-15 mg) in patients with T2DM (ClinicalTrials.gov no. NCT02759107). Doses higher than 5 mg were attained by titration, dulaglutide (DU) was used as a positive control. The primary objective was to investigate safety and tolerability of LY3298176.ResultsLY3298176 activated both GIP and GLP-1 receptor signaling in vitro and showed glucose-dependent insulin secretion and improved glucose tolerance by acting on both GIP and GLP-1 receptors in mice. With chronic administration to mice, LY3298176 potently decreased body weight and food intake; these effects were significantly greater than the effects of a GLP-1 receptor agonist. A total of 142 human subjects received at least 1 dose of LY3298176, dulaglutide, or placebo. The PK profile of LY3298176 was investigated over a wide dose range (0.25-15 mg) and supports once-weekly administration. In the Phase 1 b trial of diabetic subjects, LY3298176 doses of 10 mg and 15 mg significantly reduced fasting serum glucose compared to placebo (least square mean [LSM] difference [95% CI]: -49.12 mg/dL [-78.14, -20.12] and -43.15 mg/dL [-73.06, -13.21], respectively). Reductions in body weight were significantly greater with the LY3298176 1.5 mg, 4.5 mg and 10 mg doses versus placebo in MAD HS (LSM difference [95% CI]: -1.75 kg [-3.38, -0.12], -5.09 kg [-6.72, -3.46] and -4.61 kg [-6.21, -3.01], respectively) and doses of 10 mg and 15 mg had a relevant effect in T2DM patients (LSM difference [95% CI]: -2.62 kg [-3.79, -1.45] and -2.07 kg [-3.25, -0.88], respectively. The most frequent side effects reported with LY3298176 were gastrointestinal (vomiting, nausea, decreased appetite, diarrhoea, and abdominal distension) in both HS and patients with T2DM; all were dose-dependent and considered mild to moderate in severity.ConclusionsBased on these results, the pharmacology of LY3298176 translates from preclinical to clinical studies. LY3298176 has the potential to deliver clinically meaningful improvement in glycaemic control and body weight. The data warrant further clinical evaluation of LY3298176 for the treatment of T2DM and potentially obesity.

Dataset Information

Discovery of MK-1462: GLP-1 and Glucagon Receptor Dual Agonist for the Treatment of Obesity and Diabetes.

Publications

Discovery of MK-1462: GLP-1 and Glucagon Receptor Dual Agonist for the Treatment of Obesity and Diabetes.

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